Fountain pen



April 8, 1924;y A A. TRAIL FOUNTAIN PEN Filed Aug. 4, 192s INVENTOR a vm Il! AvroRNEY WITNESS:

Patented pr. 8, 1924-.

tra

ALEXANDER TRAIL, OF CALGARY, ALBERTA, CANADA.

FOUNTAIN PEN.

Application filed August 4, 1923. `Serial No. 655,611.

T0 all whom t may concern.'

Be it known that I, ALEXANDER TRAIL, a citizen of Canada, residing at Calgary, in the Province of Alberta and Dominion of Canada., have invented new and useful Improvements in Fountain Pens, of which the following is a specification.

The object of my said invention is to improve what are known as self-filling fountain pens by the provision of simple, efficient and easily operated means for compressing and permitting of detention of the resilient ink bag.

To the attainment of the foregoing, the invention consists in the improvement ,as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure 1 is a section showing my novel fountain pen as closed.

Figure 2 is a section showing the pen with the parts arranged for the filling of the pen.

Figure 3 is an enlarged Vcross-section taken in the plane indicated by the line 3-3 of Figure 1.

Figure 4 is a detail view of the lever for cooperating with the ink bag.

Figure 5 is an enlarged section on the line 5-5 of Figure 1.

Figure 6 is an enlarged detail perspective of the rear end of the pen handle.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

Among other elements my novel pen comprises a tubular handle 1, reduced and exteriorly threaded at its rear end as designat-ed by 2. As best shown in Figures 5 and 6 the handle 1 is provided in its rear end with a slot 4 in communication with which are opposite lateral slotsl 5X. The slot 4 is for the oscillation of the lever for compressing the ink bag 5, the said lever being provided with a body 6 and a long flexible forward arm 7 and being also provided with trunnions 8 which are adjusted to position in the before mentioned lateral slots 5X. The

rear arm 9 of the said lever is preferably' handle 1 is a lever operatingelement 11, the said element 11 being provided with an interior cam portion 12 that receives the arm 9 of the lever as clearly shown in Figures 1, 2 and 3. The said element 11 is provided at its rear end with an exterior longitudinal grooved portion 13.

In addition to the elements named the pen comprises a cap 14, designed to be held by frictional contact on the handle 1 so as to guard the pen point when the pen is not in use. The said cap is provided at 15 with a longitudinally grooved portion designed to be engagedwith the portion 1301i the element 11 after the manner shown in Figure 2 for the convenient turning of the element 11 through a part of a revolution when it is desired to move the bag compressing lever from the position shown in Figure 2 and vice versa.

In the practical use of my novel pen it will be manifest that when the cap 14 is positioned as shown in Figure 2 and is turned in the proper direction, the cam 12 ending on the arm 9 of the lever will move the lever from the position shown in Figure 1 to that shown in Figure 2 so as to compress the bag 5. Then with the nozzle 10 immersed in ink it will be understood that a. reverse turn of the cap 14 and the element 11 will result in the lever being swung from the position shown in Figure 2 to the position shown in Figure 1 with the result that the bag 5 will be lled with ink. Manifestly when desired the said operation may be repeated, the cap 14 enga-ged with the element 11 as shown in Figure 2 constituting avery convenient means for the turning of the element 11 about its axis. It will also be noticed that when the element 11 is turned to actuate the lever and compress the ink bag 5, the said element 11 will be moved from the position shown in Figure 1 relative to the handle 1 to the position `shown in Figure 2.

Notwithstanding the capacity of function ascribed to my novel self-filling pen, it will be manifest that the pen is simple and inexpensive in construction and is free of delicate parts such as are likely to get out of order after a short period of use.

I have entered into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a full, clear and exact under-standing of the saidembodiinent. I do not desire, however, to be understood as confining myself to the specific construction and relative arrangement of parts inasmuch as in the future practice of the invention various changes and modifications may b'e made such as fall within the scope of my invention as delined in my appended claims.

Having described my invention, what I claim and desire to secure by Letters-Patent, is f l. A self-filling fountain pen comprising a handle reduced and exteriorly threaded at its rear end and having in said end a slot and side slots in communication with the first-named slot, a nozzle carried in the forward end of the handle and provided with a pen point and a feed bar, an ink bag arranged in the handle and on the rear end of said nozzle, a lever movable in the first named slot of the handle and having trunnions disposed in said lateral slots and also having a forward flexible arm opposed4 in sidewise relation to the ink bag and also having a rear arin extending rearwardly from the handle, an element threaded on the rear reduced end of the handle and having an interior cam portion receiving the rear arm of the lever and also having a longitudinally grooved exterior rear end portion, and a cap adapted to be detachably secured on the forward portion of the handle to enclose the nozzle and the pen point and being provided with an interior longitudinally grooved portion to engage the corresponding portion of the cam element when the cap is positioned on said cani element for the turning of the latter about its axis.

2. A self-filling fountain pen comprising a handle reduced and exteriorly threaded at its rear end and having in said end a slot and side slots in communication with the firstnamed slot, a nozzle carried in the forward end of the handle and provided with a pen point and a feed bar, an ink bag arranged in the handle and on the rear end of said nozzle, a lever movable in the first-named slot of the handle and having trunnions disposed in said lateral slots and also having a forward iiexible arm opposed in sidewise relation to the ink bag and also having a rear arm extending rearwardly from the handle, and an element threaded on the rear reduced end of the handle and having an interior cam arranged to cooperate with the rear arm of the said lever.

3. In a self-filling fountain pen, the combination of a hollow handle equipped with a pen point and means for conducting ink thereto and also equipped with an ink bag in connection with said conducting means, a lever fulcrumed in the rear portion of the handle and having a forward arm opposed in side by side relation to the ink bag and also having a rear arm extending in 'rear of the handle, and an element connected with the handle and having an interior cam for cooperating with the rear arm of the lever to swing said lever when said element is turned about its axis.

In testimony whereof I afiix my signature.

ALEXANDER TRAIL. 

